PCA8538UG(2014) View Datasheet(PDF) - NXP Semiconductors.
Part Name
Description
MFG CO.
PCA8538UG Datasheet PDF : 107 Pages
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NXP Semiconductors
PCA8538
Automotive 102 x 9 Chip-On-Glass LCD segment driver
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Fig 35. Example of bank selection in 1:4 multiplex mode
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In Figure 36 an example is shown for the 1:4 multiplex drive mode where the displayed
data is read from the first four rows of the memory (bank 0), while the transmitted data is
stored in the second four rows of the memory (bank 4). Theses second four rows are
currently not accessed for reading. Therefore different content can be loaded into the first
and second four RAM rows. When switching to reading with the Output-bank-select
command it will be immediately displayed on the LCD.
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Fig 36. Example of the Input-bank-select and the Output-bank-select command with
multiplex drive mode 1:4
8.14.3.1 Input-bank-select
The Input-bank-select command (see Table 26 on page 22) loads display data into the
display RAM in accordance with the selected LCD drive configuration (see Figure 34 on
page 60).
• In static drive mode, an individual content can be stored in each RAM bank (bank 0 to
bank 7 which corresponds to row 0 to row 7).
• In 1:2 multiplex drive mode, individual content for RAM bank 0 (row 0 and row 1),
RAM bank 2 (row 2 and row 3), RAM bank 4 (row 4 and 5) and RAM bank 6 (row 6
and row 7) can be stored.
• In 1:4 multiplex drive mode individual content can be stored in RAM bank 0 (row 0 to
row 3) and RAM bank 4 (row 4 to row 7).
PCA8538
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 4 — 26 September 2014
© NXP Semiconductors N.V. 2014. All rights reserved.
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